1 Corinthians 14:18-21

I thank God that I speak in different kinds of languages more than all of you. But in the church meetings I would rather speak five words I understand in order to teach others than thousands of words in a different language. Brothers and sisters, do not think like children. In evil things be like babies, but in your thinking you should be like adults. It is written in the Scriptures: “With people who use strange words and foreign languages I will speak to these people. But even then they will not listen to me,” says the Lord.